Devonian Period

This is the fourth period in the Paleozoic Era.

During this period, fish became very common, and dominated some parts of the oceans. Trilobites and crinoids were still common. Reefs and corals were still common as well.

Plants grew more and more on land, to the point where they dominated the land. Some arthropods became adapted to walking on land, and were the first to walk inland.

An extinction event at the end of the period, wiping out 60-70% of all life, especially sea life.